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    shift_stupid's Avatar
    shift_stupid Posts: 1, Reputation: 1
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    #1

    Mar 4, 2007, 01:36 PM
    the unit circle
    the point p is on the unit circle. The x-coordinate of p is 2/7 and p is in quadrant 1. find the point p(x,y)
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    galactus Posts: 2,271, Reputation: 282
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    #2

    Mar 4, 2007, 01:41 PM
    The unit circle means the radius is 1. You are given x. Now, use Pythagoras to find y and you're all set.
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